Momentive RTV5818-300ML

Neutral Cure Single Component Silicone Adhesive Sealant Paste, Clear, 300ml Cartridges

(Case of 24)

RTV5818 silicone adhesive sealant is a neutral cure, one-component, ready-to-use translucent silicone that cures to tough resilient rubber on exposure to atmospheric moisture at room temperature. This silicone-based adhesive is a fast-curing, paste-consistency product suitable for use where a quick initial adhesion build is desired. RTV5818 allows for movement of the sealed assemblies in shorter times, which increases productivity. It is excellent for the sealing and bonding of electronic components onto printed circuit boards, and for protecting copper connections on electronic parts assemblies. RTV5818 is a promising choice as a weatherproofing sealant wherever power cords enter motors. It also works well as a gasket for leak-resistant sealing and insulating.

Primerless adhesion to many metals and plastics
Non-corrosive to most substrates
Low odor cure
Good confined cure properties
One-component product - No mixing required
Retains elastomeric properties at temperatures of -60ºC (-75ºF) to 204ºC (400ºF) for long periods, and to 260ºC (500ºF) for short periods
Room temperature cure
Excellent electrical insulation properties
Excellent UV, chemical, and weather resistance

$644.40

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Technical Documents

SDS/MSDS Sheets

Momentive RTV5818 Safety Data Sheet

Product Info & TDS Sheets

Momentive RTV5818 Technical Data Sheet

Details

Because it utilizes a moisture cure system, RTV5818 should not be used in thicknesses greater than 6mm (1/4 in). Where section depths exceed 6mm (1/4 in.) we recommend using Momentive Performance Materials' one-component addition cure or two-component silicone rubber compounds.

Typical Physical Properties

Uncured Properties

Color: Translucent
Consistency: Paste
Specific Gravity: 1.04
Application Rate, gm/min.: 360
Tack Free Time, minutes: 15
Cure Through Time, hours: 12

Cured Properties¹

Mechanical:
- Hardness, Shore A: 24
- Tensile Strength, kg/cm2 (lb/in2): 21 (300)
- Elongation, %: 435
- Tear Strength, kg/cm (lb/in): 7.1 (40)
- Peel Strength, kg/cm (lb/in): 8 (47)
  - Glass: 7.5 (42)
  - Aluminum: 8.6 (48)
  - Lexan Polycarbonate*: 7.1 (40)
  - PVC: 8.0 (45)
Electrical²:
- Dielectric Strength, kV/mm(V/mil): 17 (425)
- Dielectric Constant @ 100 Hz: 2.8
- Dissipation Factor @ 100 Hz: 0002
- Volume Resistivity, ohm-cm: 2x10¹⁵
Thermal²:
- Brittle Point, °C (°F): -60 (-75)
- Thermal Conductivity, W/m K (Btu ft/ft²h °F): 0.06 (0.10)
- Coefficient of Thermal Expansion, mm/mm/°C: 3.0 x 10^-4

(1) Cured 7 days at 25°C (77°F) and 50% relative humidity.
(2) Information is provided for customer convenience. These properties are not tested on a routine basis.
*Lexan is a trademark of SABIC Innovative Plastics IP B

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